Improvement in sleighs



C. P. KIMBALL.

Sleighs. v 'No.'l53,901. Patented Au .n,1a14."

UNITED STATES PATENT OFFICE.

CHARLES P. KIMBALL OF PORTLAND, MAINE.

IMPROVEMENT IN SLEIGHS.

Specification forming part of Letters Patent No. 1 58,901, dated August11, 1874; application filed June 26, 1873.

To all whom it may concern Be it known that I, CHARLES P. KIMBALL, ofPortland, in the county of Cumberland and State of Maine, have inventedcertain new and useful Improvements in Sleighs; and Ido hereby declarethat the following is a full, clear, and exact description thereof, thatwill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings and tothe letters of reference marked thereon, which form a part of thisspecification.

Figure 1 is a side view of a sleigh with my improvements attachedthereto. Fig. 2 is a transverse section of one of the runners, showingmy improved sleigh-shoe applied to the same.

Same letters show like parts.

The object of my invention is to produce an improved sleigh-shoe-onethat will, for hard or icy roads, present only a narrow bearing, and forsoft or snowy roads will present a broad bearing.

Having given the purpose of my invention, I will first proceed todescribe my improved sleigh-shoe.

I make the runner to the sleigh in the usual manner, but double itsusual width. I also make it round, or partially so, on the bottom. Myimproved sleighshoe is made concave on the upper side so as to fit thelower surface of the runner, as shown in the draw ing, Fig. 2, and onthe bottom side thereof is a projecting part or center portion. Thiscenter portion is made about onehalf the width of the sleigh-shoe, andof the necessary depth or thickness, as use shall determine. This shoeis fastened to the runner by bolts and screws, and must be made ofeither best rolled iron or steel.

For a better idea of the form of this piece, I refer to the drawing,Fig. 2, where a transverse seotion of the runner and my improved shoe isshown.

a shows the sleighrunner; b, my improved shoe; 0, the projecting part orcenter portion on said shoe.

It is evident from the above that a sleighrunner provided with myimproved sleighshoe will, on hard or icy roads, present for a bearingthe projecting part or center portion my invention differs from that ofNobles, in

asmuch as I do not claim constructing a sleighrunner of metal or wood,and. combining it in such manner that a straight piece of wood may beused for the main portion of the runner, and cast metal for the crookand for the shoe of the wooden portion, and having for its object toavoid the natural crook or bend of ordinary wooden runners.

My invention has for its object the produc- I tion of a sleigh-shoewhereby, for hard or icy roads, only a small or narrow surface will bepresented for a bearing, and for soft or snowy roads a broad bearingwill be obtained. This shoe is of the form described and shown, and isto be attached to the bottom of the runner of the sleigh; or, ifdesired, the runner itself may be provided with the projecting centerportion before described.

I do not claim a recessed or grooved shoe to receive the runner of asleigh, as seen in the patent of H. O. Overman, September 7, 1869, thesame being on the bottom or wearing surface smooth. My invention aims,in effect, to produce two bearing-surfaces, one for a hard and the otherfor a soft road. It

has no relation to the method of uniting the I runner and the shoe.

What I claim as my invention, and desire to secure by Letters Patent,is-- The sleigh-shoe b, having the projecting portion 0 and the broaderbearing, as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand.

0. P. KIMBALL.

Witnesses: V

FRANK H.-JoR1 AN,' EDGAR S. BROWN.

